Still did not cancel my contracts

Hello Peter i am very frustrated at this point as my contract has not been cancelled as yet. I have phoned telkom yesterday just to find out they have not cancelled it and i was billed for February as well they need to stop taking my money now i do not wish to continue this contracts anymore. I have proof that i have cancelled the contract more then then a month ago i i will attach it to the complaint. Please resolve this matter as i do not want to sit another month seeing that i need to pay bill i am sick and tired of the same **** over and over they need to do their jobs properly as this is inconvenience to my budget i have planned for last month please sort this out!!! The numbers i want to cancel ********** 950... ********** 627... ********** 141 those are the three numbers i am getting rid off please i do not need this type of stress.